Nivelco level gauge

NegotiableUpdate on 01/02

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Nature of the Manufacturer: Producers

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Overview

Nivelco liquid level gauges have developed a comprehensive solution covering clean liquids, corrosive media, high temperature and high pressure through four major technological routes: magnetostrictive, ultrasonic, capacitive, and guided wave radar. Its core value lies in combining high-precision measurement with intelligent management, which not only meets the stringent reliability requirements of industrial production, but also reduces the full lifecycle cost through modular design.

Product Details

Liquid level gauge is a key equipment for monitoring the height of liquid in containers in industrial production, widely used in fields such as petrochemicals, food and beverage, and sewage treatment. As a provider of level measurement solutions, its liquid level gauge products are renowned for their high precision, high reliability, and diverse designs. The following is an introduction from four dimensions: working principle, product type, application scenarios, and technological advantages.

1、 Working principle: Combining non-contact and contact measurement

The core technology of Nivelco level gauges revolves around magnetic fields, sound waves, and capacitance changes, forming two major measurement systems: non-contact and contact

magnetostrictive technology

Pulse current is transmitted through waveguide wires, and the magnetic field generated by the current interacts with the magnetic ring inside the float, producing torsional wave pulses. By measuring the time difference between pulse emission and return, the float position can be accurately located to determine the liquid level height. This technology has no mechanical friction, long lifespan, and stable accuracy.

Ultrasonic technology

By utilizing the propagation characteristics of sound waves in air, the liquid level is determined by emitting ultrasonic waves and receiving reflected waves from the liquid surface, and calculating the round-trip time of sound waves. The non-contact design makes it suitable for corrosive liquids or scenarios where direct contact is not possible, such as acid and alkali storage tanks, sewage tanks, etc.

Capacitive technology

Using a metal rod as the electrode, the container wall as the other pole, and liquid as the medium to change the capacitance value between the two poles. The change in liquid level leads to a change in dielectric constant, which is then used to calculate the liquid level height based on the capacitance value. This technology is applicable to both conductive and non-conductive liquids, and has a simple structure and low cost.

2、 Product type: Covering all scenario requirements

Nivelco has a rich product line of liquid level gauges that can meet the needs of different working conditions:

Magnetostrictive liquid level meter

Suitable for high-precision measurement of clean liquids, such as finished oils, food grade liquids, etc. Its core advantage lies in supporting dual float design, which can simultaneously monitor the interface of two different liquids (such as oil-water separation scenarios). Guide rods are divided into two types: rigid (suitable for standard storage tanks) and flexible (suitable for the curved structure of large storage tanks), with flexible installation.

Ultrasonic level gauge

Divided into integrated and split designs, with a range covering several meters to tens of meters. Integrated device with sensors and display modules, suitable for rapid deployment; The split type is connected to the sensor and control unit through a long cable, suitable for high temperature or high pressure environments. Some models are equipped with sights that can accurately locate measurement points.

Capacitive level gauge

Adopting a two-wire design, supporting low-frequency or high-frequency modes, the probe length can reach up to 20 meters. Its rigid or flexible probe can adapt to different container shapes and has a 32 point linearization function, which can correct measurement errors of nonlinear media (such as high viscosity liquids).

guided wave radar

By propagating microwave pulses along the waveguide rod and calculating the time difference of reflected waves, the liquid level is determined. This technology has strong anti-interference ability, especially suitable for complex working conditions containing steam, foam or hanging materials, such as catalyst storage tank, chemical raw material tank, etc.

3、 Application scenario: Cross industry solutions

Nivelco level gauges cover the entire industrial production chain with diversified technology routes:

petrochemical

Monitor the liquid levels of finished oil and chemicals in the storage tank area, and meet the safety requirements of hazardous areas through explosion-proof design. The guided wave radar level gauge can penetrate the vapor layer and accurately measure the liquid level of high-temperature oil tanks.

Food and Beverage

The hygienic design of magnetostrictive level gauges (such as stainless steel material and sealed structure) meets food grade standards and is used for measuring and controlling clean liquids such as milk and beer.

sewage treatment

The non-contact measurement of ultrasonic level gauge avoids sewage corrosion, and the multi probe channel input function can simultaneously monitor the liquid level difference of multiple water tanks, achieving automatic drainage control.

energy and electricity

The capacitive level gauge monitors the levels of cooling water and lubricating oil, and its wide temperature range is designed to adapt to harsh environments, ensuring stable operation of the equipment.

4、 Technical advantage: Balance between reliability and intelligence

High precision and long lifespan

Magnetostriction technology has an accuracy of millimeter level and no mechanical wear parts, with a maintenance cycle of over 10 years; Ultrasonic technology eliminates the influence of environmental temperature on sound velocity through temperature compensation algorithms, ensuring measurement stability.

Intelligent functions

Supports HART communication protocol, capable of remote calibration and diagnosis; Intelligent electronic circuits automatically calculate volume, reducing manual intervention; Some models are equipped with large LCD displays, which provide real-time display of multiple parameters such as liquid level and temperature.

modular design

Sensors, guide rods, floats and other components can be quickly replaced, reducing downtime maintenance costs. For example, the plug-in display module of a capacitive level gauge allows for quick on-site debugging without the need for reprogramming.

environmental adaptability

The protection level reaches IP67/IP68, which can be immersed in water or resist dust intrusion; Explosion proof certification covers mainstream global standards such as ATEX and IECEx, and is applicable to flammable and explosive locations.

5. Summary

Nivelco level gauges have developed a comprehensive solution covering clean liquids, corrosive media, high temperature and high pressure through four technical routes: magnetostrictive, ultrasonic, capacitive, and guided wave radar. Its core value lies in combining high-precision measurement with intelligent management, which not only meets the stringent reliability requirements of industrial production, but also reduces the full lifecycle cost through modular design.